Predicting the structure and functions of peatland microbial communities from Sphagnum phylogeny, anatomical and morphological traits and metabolites. Sytiuk, A., Céréghino, R., Hamard, S., Delarue, F., Guittet, A., Barel, J. M., Dorrepaal, E., Küttim, M., Lamentowicz, M., Pourrut, B., Robroek, B. J. M., Tuittila, E., & Jassey, V. E. J. Journal of Ecology, 110(1):80–96, 2022. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.13728![Predicting the structure and functions of peatland microbial communities from Sphagnum phylogeny, anatomical and morphological traits and metabolites [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Sphagnum mosses are keystone species in northern peatlands. Notably, they play an important role in peatland carbon (C) cycling by regulating the composition and activity of microbial communities. However, it remains unclear whether information on Sphagnum phylogeny and/or traits-based composition (i.e. anatomical and morphological traits and metabolites) can be used to predict the structure of microbial communities and their functioning. Here we evaluated whether Sphagnum phylogeny and traits predict additional variation in peatland microbial community composition and functioning beyond what would be predicted from environmental characteristics (i.e. climatic and edaphic conditions). We collected Sphagnum and microbial data from five European peatlands distributed along a latitudinal gradient from northern Sweden to southern France. These data allowed us to assess Sphagnum anatomical and morphological traits and metabolites at different sites along changing environmental conditions. Using structural equation modelling (SEM) and phylogenetic distance analyses, we investigated the role of Sphagnum traits in shaping microbial community composition and functioning along with environmental conditions. We show that microbial community composition and traits varied independently from both Sphagnum phylogeny and the latitudinal gradient. Specifically, the addition of Sphagnum traits to climatic and edaphic variables to the SEM allowed it to explain a larger proportion of the explained variance (R2). This observation was most apparent for the biomass of decomposers (+42%) and phototrophs (+19%), as well as for growth yield microbial traits (+10%). As such, that Sphagnum metabolites were important drivers for microbial community structure and traits, while Sphagnum anatomical and morphological traits were poor predictors. Synthesis. Our results highlight that Sphagnum metabolites are more likely to influence peatland microbial food web structure and functioning than Sphagnum anatomical and morphological traits. We provide further evidence that measurements of the plant metabolome, when combined with classical functional traits, improve our understanding of how the plants interact with their associated microbiomes.
@article{sytiuk_predicting_2022,
title = {Predicting the structure and functions of peatland microbial communities from {Sphagnum} phylogeny, anatomical and morphological traits and metabolites},
volume = {110},
copyright = {© 2021 British Ecological Society},
issn = {1365-2745},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2745.13728},
doi = {10.1111/1365-2745.13728},
abstract = {Sphagnum mosses are keystone species in northern peatlands. Notably, they play an important role in peatland carbon (C) cycling by regulating the composition and activity of microbial communities. However, it remains unclear whether information on Sphagnum phylogeny and/or traits-based composition (i.e. anatomical and morphological traits and metabolites) can be used to predict the structure of microbial communities and their functioning. Here we evaluated whether Sphagnum phylogeny and traits predict additional variation in peatland microbial community composition and functioning beyond what would be predicted from environmental characteristics (i.e. climatic and edaphic conditions). We collected Sphagnum and microbial data from five European peatlands distributed along a latitudinal gradient from northern Sweden to southern France. These data allowed us to assess Sphagnum anatomical and morphological traits and metabolites at different sites along changing environmental conditions. Using structural equation modelling (SEM) and phylogenetic distance analyses, we investigated the role of Sphagnum traits in shaping microbial community composition and functioning along with environmental conditions. We show that microbial community composition and traits varied independently from both Sphagnum phylogeny and the latitudinal gradient. Specifically, the addition of Sphagnum traits to climatic and edaphic variables to the SEM allowed it to explain a larger proportion of the explained variance (R2). This observation was most apparent for the biomass of decomposers (+42\%) and phototrophs (+19\%), as well as for growth yield microbial traits (+10\%). As such, that Sphagnum metabolites were important drivers for microbial community structure and traits, while Sphagnum anatomical and morphological traits were poor predictors. Synthesis. Our results highlight that Sphagnum metabolites are more likely to influence peatland microbial food web structure and functioning than Sphagnum anatomical and morphological traits. We provide further evidence that measurements of the plant metabolome, when combined with classical functional traits, improve our understanding of how the plants interact with their associated microbiomes.},
language = {en},
number = {1},
urldate = {2024-03-27},
journal = {Journal of Ecology},
author = {Sytiuk, Anna and Céréghino, Régis and Hamard, Samuel and Delarue, Frédéric and Guittet, Amélie and Barel, Janna M. and Dorrepaal, Ellen and Küttim, Martin and Lamentowicz, Mariusz and Pourrut, Bertrand and Robroek, Bjorn J. M. and Tuittila, Eeva-Stiina and Jassey, Vincent E. J.},
year = {2022},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.13728},
keywords = {\#nosource, Sphagnum, functional traits, latitudinal gradient, metabolomics, microbial traits, peatlands, plant and microbial communities, plant–soil (below-ground) interactions},
pages = {80--96},
}
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